🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.4

Radius: 12.7

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.64 AU - 0.84 AU

Year: 439 Days

Day: 5.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 89.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,064,770 km

• M1: 158,275 km (0.09 R)
• M2: 666,010 km (0.099 R)
• M3: 1,215,483 km (0.052 R)
• M4: 1,641,089 km (0.081 R)
• M5: 2,344,498 km (0.061 R)
• M6: 2,936,307 km (0.049 R)
• M7: 3,351,291 km (0.097 R)
• M8: 4,641,573 km (0.088 R)
• M9: 5,148,411 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.3

Radius: 10.6

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.7 AU - 1.9 AU

Year: 1667 Days

Day: 12.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 153.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,064,770 km

• M1: 131,796 km (0.038 R)
• M2: 482,603 km (0.112 R)
• M3: 1,039,855 km (0.071 R)
• M4: 1,968,259 km (0.111 R)
• M5: 3,261,383 km (0.11 R)
• M6: 3,702,846 km (0.094 R)
• M7: 4,594,749 km (0.071 R)
• M8: 5,292,174 km (0.114 R)
• M9: 6,238,680 km (0.096 R)
• M10: 7,601,965 km (0.074 R)
• M11: 8,381,669 km (0.066 R)
• M12: 9,007,886 km (0.055 R)
• M13: 9,604,034 km (0.101 R)
• M14: 10,418,295 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.1

Radius: 11.4

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.17 AU - 2.61 AU

Year: 2550 Days

Day: 6.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,064,770 km

• M1: 141,819 km (0.058 R)
• M2: 843,882 km (0.105 R)
• M3: 1,434,045 km (0.111 R)
• M4: 2,504,268 km (0.086 R)
• M5: 2,998,390 km (0.106 R)
• M6: 4,816,603 km (0.12 R)
• M7: 5,658,988 km (0.047 R)
• M8: 6,487,910 km (0.045 R)
• M9: 7,045,910 km (0.087 R)
• M10: 8,258,251 km (0.119 R)
• M11: 8,780,348 km (0.113 R)
• M12: 9,782,803 km (0.061 R)
• M13: 10,668,722 km (0.076 R)
• M14: 11,647,690 km (0.027 R)
• M15: 14,849,533 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.7

Radius: 10.4

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.79 AU - 2.91 AU

Year: 3321 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,064,770 km

• M1: 129,552 km (0.085 R)
• M2: 648,956 km (0.119 R)
• M3: 1,041,949 km (0.113 R)
• M4: 1,640,939 km (0.068 R)
• M5: 2,163,634 km (0.07 R)
• M6: 3,604,261 km (0.078 R)
• M7: 4,563,184 km (0.096 R)
• M8: 5,440,875 km (0.113 R)
• M9: 6,308,991 km (0.091 R)
• M10: 7,934,521 km (0.116 R)
• M11: 10,144,082 km (0.096 R)
• M12: 10,723,325 km (0.096 R)
• M13: 12,782,988 km (0.112 R)
• M14: 13,360,885 km (0.117 R)
• M15: 14,569,187 km (0.112 R)
• M16: 14,987,762 km (0.12 R)
• M17: 15,903,750 km (0.071 R)
• M18: 18,085,934 km (0.102 R)
• M19: 23,035,828 km (0.092 R)
• M20: 24,695,467 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.3

Radius: 12.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.26 AU - 6.22 AU

Year: 8280 Days

Day: 9.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,064,770 km

• M1: 160,369 km (0.096 R)
• M2: 620,682 km (0.062 R)
• M3: 1,254,827 km (0.118 R)
• M4: 1,768,247 km (0.087 R)
• M5: 2,235,890 km (0.105 R)
• M6: 2,673,164 km (0.116 R)
• M7: 3,630,292 km (0.082 R)
• M8: 4,422,412 km (0.052 R)
• M9: 6,522,467 km (0.095 R)
• M10: 9,175,137 km (0.087 R)
• M11: 9,937,188 km (0.092 R)
• M12: 11,741,638 km (0.079 R)
• M13: 13,301,794 km (0.107 R)
• M14: 14,278,518 km (0.101 R)
• M15: 16,633,937 km (0.076 R)
• M16: 22,820,407 km (0.08 R)
• M17: 23,307,647 km (0.066 R)
• M18: 24,641,163 km (0.106 R)
• M19: 29,231,574 km (0.096 R)
• M20: 35,652,015 km (0.026 R)
• M21: 36,750,662 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136

Radius: 3.7

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.15 AU - 8.55 AU

Year: 13754 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,064,770 km

• M1: 46,076 km (0.077 R)
• M2: 389,254 km (0.089 R)
• M3: 804,238 km (0.027 R)
• M4: 1,075,010 km (0.025 R)
• M5: 1,264,850 km (0.117 R)
• M6: 2,158,398 km (0.117 R)
• M7: 3,214,409 km (0.033 R)
• M8: 4,363,321 km (0.098 R)
• M9: 5,043,842 km (0.067 R)
• M10: 7,885,453 km (0.091 R)
• M11: 8,119,125 km (0.116 R)
• M12: 8,317,342 km (0.112 R)
• M13: 9,618,844 km (0.05 R)
• M14: 14,155,549 km (0.054 R)
• M15: 14,910,121 km (0.116 R)
• M16: 15,508,662 km (0.084 R)
• M17: 15,691,321 km (0.104 R)
• M18: 21,633,348 km (0.065 R)
• M19: 28,732,814 km (0.11 R)
• M20: 29,564,728 km (0.081 R)
• M21: 32,652,727 km (0.039 R)
• M22: 33,254,709 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.4

Radius: 3.7

Gravity: 30.64 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 7.99 AU - 9.55 AU

Year: 17927 Days

Day: 20.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,064,770 km

• M1: 57,745 km (0.05 R)
• M2: 190,438 km (0.111 R)
• M3: 373,247 km (0.1 R)
• M4: 593,904 km (0.115 R)
• M5: 907,161 km (0.113 R)
• M6: 1,406,370 km (0.065 R)
• M7: 2,343,151 km (0.051 R)
• M8: 2,553,785 km (0.064 R)
• M9: 3,037,136 km (0.098 R)
• M10: 3,551,753 km (0.044 R)
• M11: 8,485,191 km (0.106 R)
• M12: 8,632,096 km (0.105 R)
• M13: 12,185,495 km (0.054 R)
• M14: 13,736,226 km (0.111 R)
• M15: 15,779,583 km (0.114 R)
• M16: 20,987,384 km (0.119 R)
• M17: 22,823,399 km (0.103 R)
• M18: 23,107,635 km (0.073 R)
• M19: 29,525,384 km (0.119 R)
• M20: 36,001,924 km (0.062 R)
• M21: 37,823,129 km (0.119 R)
• M22: 42,930,400 km (0.095 R)
• M23: 50,535,806 km (0.104 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 16,032 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit